07-05-07, 03:04 PM | #1 |
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Outboard "Hiccupping"
Don't know if I got that term right or not. Maybe someone can give me an idea of what to check.
I have a 73 Johnson 20HP tiller handle; the last few times that I have taken my baby out the motor doesnt seem to want to run as smooth as she can. It seems to what I call "hiccup" while running; some people may call it sneezing. I have had the carb rebuilt, changed the plugs and wires along with rebuilding the armature plate. I have put new gas in it the last 3 trips out, so I know it isn't the fuel. Any other ideas of what to check on this thing?
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07-05-07, 05:35 PM | #2 |
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check your primer bulb and fuel line.. your sucking air..
zooker
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07-05-07, 07:17 PM | #3 |
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Probably wouldn't hurt to run some Seafoam through the tank, either. I'll clean the crud out.
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07-06-07, 07:58 AM | #4 |
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I have checked the hose and primer bulb; there are no cracks or leaks. I just bought it 2 years ago and it still looks brand new.
Where can I get some sea foam, any marina??
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07-06-07, 01:47 PM | #5 |
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Ok this may sound a little odd but get your carb cleaner out and spray the base of the carb while running and listen for it to choke out/sputter.
If it does you have a vacume leak.. Easy fix is new gaskets and good clean mate surface. Capt Mike
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07-06-07, 03:33 PM | #6 |
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booger
i change mine every year.. zooker
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07-06-07, 05:21 PM | #7 |
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You can get Sea Foam at NAPA, AutoZone and other automotive part stores. I'd imagine Marina's carry it as well but you'll probably pay a lot more for it.
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07-06-07, 06:11 PM | #8 |
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advanced auto has seafoam in gallons $37
zooker
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07-13-07, 06:44 PM | #9 |
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Hiccuping on them thar SLOMC's is due to a very very small orifice in the carb being plugged. It is a idle orfice that has to be open otherwise it is actually starving for air at certain times of the cycle. MOST of the time a REAL good dosing of good ole Carb Cleaner spray and a good dose of Seafoam will cure it. If it doesnt ya gonna have to pickup a crab kit and rebuild her. 4.95 for Seafoam and 1.00 can of carb cleaner is the firsat thing to do though.
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